Spatial and temporal heterogeneity study of agricultural non-point source pollutant loading of Zhangxi Watershed

摘要：

The AnnAGNPS model (Annualized Non-Point Source Pollution Model) is applied to analyze the spatial and temporal heterogeneity of agricultural non-point source pollutant loading in Zhangxi Watershed. The spatial database and attribute database of non-point source pollution is then established. Our result shows that in spatial scale, absorbed nitrogen has great spatial heterogeneity, while dissolved phosphoruss heterogeneity is relatively small. The pollutant loading in orchard and woodland is smaller than that in farmland; paddy soils is larger compared to those in yellow and red soil. In temporal scale, over 55% of the pollutant loading happens in flood season. There is only 4% in dry season.

作者: B.J.Huang H.Z.Yang S.P.Wang L.Yang

作者单位: College of Environmental Science and Engineering, Key Laboratory of Yangtze Aquatic Environment of the Ministry of Education, Tongji University, Shanghai, 200092

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）